throughout the country today with the intention of preventing this -- ♪ grace mcdonnell was one of the sandy hook victims. her parents sat in the audience as the white house embarks on one of the most extensive gun control efforts ever. the initiative -- a ban on assault weapons and high-capacity magazines. universal background checks. additional mental health services. author, stephen king is pulling his book, "rage," about a high school student who guns down faculty members then takes his class hostage. published in 1977 under the pseudonym richard bachman. four different teenagers who committed school shootings had copies of the book. >> you don't leave a can of gasoline where a boy with firebug tendencies can lay hands on it. >> reporter: and congress members vowing to take the nra head on. >> the gun lobby can be stopped my friends, they can be stopped. >> reporter: voices in the crowd taking the first steps in a long push to reform the nation's gun laws. they looked ahead to wednesday, the first congressional hearings for legislation on gun control. the head of the nra and the husband